Newly discovered ergot alkaloids in Sorghum ergot Claviceps africana occurring for the first time in Israel. Shimshoni JA(1), Cuneah O(2). Aust Vet J. Feb;78(2) Sorghum ergot (Claviceps africana) associated with agalactia and feed refusal in pigs and dairy cattle. Blaney BJ(1). PDF | On Jan 1, , S. Bhuiyan and others published Control of ergot ( Claviceps africana) on sorghum seed with fungicides.

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Sorghum ergot Claviceps africana associated with agalactia and feed refusal in pigs and dairy cattle. Sorghum and Millets Diseases [ed. Iowa State University Press, For a full comparison of C.

Sucking bugs that feed on the ovaries and developing seeds of Sorghum clavjceps and S. Efficacy of systemic fungicides and timing of preventative sprays in the control of sugary disease of grain sorghum Sorghum bicolor. Secondary conidiation per sphacelium or core was evaluated on a scale; germination incidence percentage of total number with any associated secondary conidiation was also calculated.

Caporael posited in that the hysterical symptoms clavicepps young women that had spurred the Salem witch trials had been the result of consuming ergot-tainted rye.

Claviceps africana (ergot)

More information claviiceps modern web browsers can be found at http: As in the formation of the disaccharide, mannitol becomes linked to an eventual 2-position of a fructose in another sucrose molecule, with concomitant release of glucose, but in this case the mannitol is already linked to a fructose moiety and creates a trisaccharide.


Copyright Mycological Research, Secondary conidia are wind-borne spores. No such process occurs in Claviceps purpureaClaviceps grohiiClaviceps nigricansand Claviceps zizaniaeall from northern temperate regions.

When several references are cited, they may give conflicting information on the status. However, despite these measures, a serious epiphytotic occurs every years in Zimbabwe Frederickson and Leuschner, However, many tropical ergots have brown or greyish sclerotia, afrocana the shape of the host seed.

Diseases of sorghum in Ethiopia. Inthe Russian Tzar Peter the Great was thwarted in his attack against the Ottoman Empire as his army travelling down the Terek steppe africaba struck by ergotism and he was forced to retreat to find edible grains for his soldiers.

Fungicide treatment of seed, however, is an effective and economic way to control potential seed-borne, conidial inoculum Dahlberg et al. Spread of ergot of sorghum Claviceps clavicesp in Central Mexico.

Metabolic pathway of oligosaccharides in sorghum honeydew caused by Claviceps africana

Occurrence of ergot sugary disease incited by a Sphacelia sp. Susceptibility period of sorghum ovaries to Sphacelia sorghi.


At the end of the cropping season the pathogen exists in the form of sphacelia and sclerotia and either may enable survival. Viability of Claviceps africana spores ingested by adult corn earworm moths, Helicoverpa zea Boddie Lepidoptera: N indicates a nucleus.

Inthe widespread appearance of C. For more information, see Frederickson et al. Biochemical physiopathology of some ergot fungi and other honeydew-producing plant parasites.

Workneh F, Rush CM, It causes unremitting contractions. Notes on some south Indian fungi. The sclerotial tissues of C. Sugars from Sphacelia sorghi honeydew.

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In Africa, the involvement of alternative hosts in the life cycle of C. Meinke H, Ryley M, Johnsongrass Sorghum halepense L. Views Read Edit View history. Ovary colonization by Claviceps africana is related to ergot resistance in male-sterile sorghum lines.

Sorghum ergot goes global in less than 3 years. A white, powdery crust forms wherever such honeydew dries. Economically significant species include C.